Figure 2.

A-edges (red) that belong to distinct AB-cycles and distinct AC-cycles, denoted by dashed blue lines and dashed green lines, respectively (left panel). A DCJ on these A-edges merges these AB-cycles and AC-cycles into a single AB-cycle and a single AC-cycle, and thus increases ts(A, B, C) by 2 (right panel).

Aganezov and Alekseyev BMC Bioinformatics 2012 13(Suppl 19):S1   doi:10.1186/1471-2105-13-S19-S1